The truck driver fire brigade was not injured.
Sgt. Samuel Winkler mentioned the automotive's air baggage have been activated and that the Tesla's 28-year-old driver suffered a damaged proper ankle, whereas the motive force of the mechanic truck did not require remedy.
Investigators are also examining the Autopilot system in that case.
There was no indication the Tesla's driver was under the influence of any substance, and information on what the driver may have told investigators about the circumstances of the crash likely would not be available before Monday, Winkler said by telephone.
A woman is in the hospital after her Tesla Model S collided with the back of a Unified Fire Authority mechanic truck Friday night on Bangerter Highway. The road was wet after rain.
Several witnesses said they didn't see the driver hit the brakes before the collision.
Bombing kills at least nine in Afghanistan
At least two explosion were heard from inside the building, but it was unclear what type of explosions they were, Mr Qaderi said. Fighting between the assailants and Afghan security forces is on-going and one attacker has been killed, he said.
Schwall, "who was the company's main technical contact with USA safety investigators, has left for rival Waymo LLC, according to people familiar the decision", The Wall Street Journal reported on 13 May.
The Police are in touch with the National transportation Safety Board regarding the crash.
At Tesla, Matthew Schwall was responsible for the performance and safety of the vehicles already in the field to strategically guide engineering changes where he reported to the CTO and serve as Tesla's primary technical contact with safety regulatory agencies such as NHTSA.
There was no immediate comment from Tesla about Schwall.
The NTSB and the National Highway Traffic Safety Administration are investigating at least two other crashes involving Tesla vehicles.